CN211957156U

CN211957156U - Cable with multilayer leakage protection effect

Info

Publication number: CN211957156U
Application number: CN202021171504.7U
Authority: CN
Inventors: 姜锡财; 解洪强
Original assignee: Qingdao Aofan Wire & Cable Co ltd
Current assignee: Qingdao Aofan Wire & Cable Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-11-17
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a belong to the technical field of communication transmission device, in particular to a cable with multilayer leakage protection effect, which comprises a polyethylene sheath, a stranded sheath and an insulated conductor sleeve, wherein the inner wall of the circumference of the polyethylene sheath is sleeved with the stranded sheath, the inner wall of the circumference of the stranded sheath is sleeved with the insulated conductor sleeve, the diameter of the stranded sheath is smaller than the inner diameter of the polyethylene sheath, the cable with multilayer leakage protection effect can be combined with the stranded sheath in the inner part of the inner sheath, the stranded holes on the stranded sheath are utilized to separate and combine conductors, the mutual clearance in the combination process is utilized to reduce the probability of mutual interference when the conductors are leaked, and the insulated conductor sleeve is combined outside the conductors, the rubber sleeve on the insulated conductor sleeve is combined with the inorganic insulated sleeve carrying mica insulating tape, thereby effectively achieving the multilayer leakage protection effect, the safety protection performance of the cable is improved, and personal and property safety caused by electric leakage is avoided.

Description

Cable with multilayer leakage protection effect

Technical Field

The utility model relates to a communication transmission technical field specifically is a cable with multilayer earth leakage protection effect.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion. A wire cable in a broad sense, also referred to as a cable for short, refers to an insulated cable, which can be defined as: an aggregate consisting of; one or more insulated wire cores, and their respective possible coatings, total protective layers and outer jackets, the cable may also have additional conductors without insulation.

The cable comprises armoured cable and cross-linked cable, the armoured cable is made up by using different material conductors and placing them in the metal sleeve tube with insulating material, and making them into flexible and firm combined body. The armored cable comprises an armored thermocouple, an armored thermal resistor, an armored heater and an armored lead wire, and is mainly used for temperature measurement, signal transmission and special heating of chemical engineering, metallurgy, mechanical manufacturing, power generation, scientific experiments and the like, and the armored thermocouple is used in the largest amount; the crosslinked cable is short for crosslinked polyethylene insulated cable, and is suitable for power frequency alternating current transmission and distribution lines with voltage of 500KV and below.

The existing cable has the advantages that the application range is large, the laying line is long, the service cycle is long, the loss is generated in the cable, the internal leakage condition is generated, the internal conductors are mutually influenced, the greater loss is generated, the single leakage protection mode cannot achieve the multilayer protection purpose, the service life of the cable is shortened, and meanwhile, the personal and property safety cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cable with multilayer earth leakage protection effect, with the promotion of the current cable operation requirement that provides in solving above-mentioned background art, new requirement has been proposed to the use of conventional cable, if lead to under the long-term external wear of cable or the condition of buckling under the abominable condition of operational environment, just need cable self to possess good flexible wear-resisting effect, but the wearability of current cable is relatively poor, in the drawback because of the sinle silk premature senility that twists reverse to lead to, also lack effectual spacing and the flexible effect of promotion cable, the problem that directly leads to the life reduction of cable.

In order to achieve the above object, the utility model provides a following technical scheme: a cable with a multilayer leakage protection effect comprises a polyethylene sheath, a stranding sheath and an insulating conductor sleeve, wherein the stranding sheath is sleeved on the inner circumferential wall of the polyethylene sheath, the insulating conductor sleeve is sleeved on the inner circumferential wall of the stranding sheath, the diameter of the stranding sheath is smaller than the inner diameter of the polyethylene sheath, a stranding plate is integrally connected with the inner circumferential wall of the stranding sheath, stranding holes are integrally connected with the surface of the stranding plate, the number of the stranding plates and the stranding holes is five, the insulating conductor sleeve is respectively inserted into the inner circumferential walls of the five stranding holes, a round hole is integrally connected with the stranding sheath, a core rod is inserted into the round hole, a rubber sleeve is sleeved on the outer circumferential wall of the insulating conductor sleeve, an inorganic insulating sleeve is sleeved on the inner circumferential wall of the rubber sleeve, and a mica insulating tape is sleeved on the outer circumferential wall of the inorganic insulating sleeve, and a conductor is inserted into the circumferential inner wall of the inorganic insulating sleeve.

Preferably, an inner sheath is inserted into the circumferential inner wall of the polyethylene sheath, and the diameter of the inner sheath is smaller than the inner diameter of the polyethylene sheath.

Preferably, the mica insulation tape is uniformly wound on the circumferential outer wall of the inorganic insulation sleeve in a spiral manner.

Preferably, the inner sheath and the stranded sheath are filled with epoxy insulating powder therebetween.

Preferably, the core rod is made of a soft rubber rod.

Compared with the prior art, the beneficial effects of the utility model are that: this cable with multilayer earth leakage protection effect, combination application through the accessory, the inside combination stranding sheath of sheath including can, utilize the stranding pore pair conductor on the stranding sheath to separate the combination, utilize the mutual clearance of combination process, mutual interference's probability when reducing the conductor electric leakage, and at the outside combination insulated conductor cover of conductor, rubber sleeve on the insulated conductor cover makes up with the inorganic insulating cover that carries the mica insulating tape, effectual multilayer earth leakage protection's effect that reaches, the safety protection nature of cable has been promoted, avoid the personal property safety because of the electric leakage leads to.

Drawings

FIG. 1 is a schematic view of the layered structure of the present invention;

FIG. 2 is a schematic view of the structure of the stranded sheath of the present invention;

fig. 3 is a schematic view of the structure of the insulated conductor sleeve of the present invention.

In the figure: 100 polyethylene sheath, 110 inner sheath, 200 strand sheath, 210 strand plate, 220 strand hole, 300 insulated conductor sheath, 310 rubber sheath, 320 inorganic insulation sheath, 330 mica insulation tape, 340 conductor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a cable with multilayer earth leakage protection effect, which is convenient for the clearance combination of conductors through the combination application of accessories, has small mutual interference, and can achieve the multilayer earth leakage protection effect, please refer to fig. 1-3, comprising a polyethylene sheath 100, a stranded sheath 200 and an insulated conductor sleeve 300;

referring to fig. 1 again, the inner sheath 110 is provided on the inner circumferential wall of the polyethylene sheath 100, and specifically, the inner sheath 110 is inserted into the inner circumferential wall of the polyethylene sheath 100, and the diameter of the inner sheath 110 is smaller than the inner diameter of the polyethylene sheath 100, which facilitates the effective sleeving;

referring to fig. 1-2 again, the circumferential outer wall of the stranding sheath 200 is sleeved with the circumferential inner wall of the inner sheath 110, specifically, the circumferential inner wall of the polyethylene sheath 100 is sleeved with the stranding sheath 200, the diameter of the stranding sheath 200 is smaller than the inner diameter of the polyethylene sheath 100, the circumferential inner wall of the stranding sheath 200 is integrally connected with a stranding plate 210, the surface of the stranding plate 210 is integrally connected with stranding holes 220, the number of the stranding plate 210 and the stranding holes 220 is five, the number of the stranding plate 210 and the stranding holes 220 can be increased or decreased according to the actual use requirement, and the use principle and the use mode are consistent;

referring to fig. 2-3 again, the outer circumferential wall of the insulated conductor sleeve 300 is inserted into the inner circumferential wall of the stranding sheath 200, specifically, the inner circumferential wall of the stranding sheath 200 is sleeved with the insulated conductor sleeve 300, the inner circumferential walls of the five stranding holes 220 are respectively inserted into the insulated conductor sleeve 300, a circular hole is integrally formed and connected inside the stranding sheath 200, a core rod is inserted into the circular hole, the outer circumferential wall of the insulated conductor sleeve 300 is sleeved with a rubber sleeve 310, the inner circumferential wall of the rubber sleeve 310 is sleeved with an inorganic insulating sleeve 320, the outer circumferential wall of the inorganic insulating sleeve 320 is sleeved with a mica insulating tape 330, the inner circumferential wall of the inorganic insulating sleeve 320 is inserted with a conductor 340, wherein the inorganic insulating sleeve 320 may be made of a commercially available insulating material;

in a particular use, the inner sheath 110 is first assembled inside the polyethylene sheath 100, epoxy insulation powder is filled between the inner sheath 110 and the stranded sheath 200, and the epoxy insulation powder can cover the surface of the workpiece in a hot dip coating, thermal spraying or electrostatic coating manner to achieve the purpose of insulation, so as to increase the insulation effect, then, five stranding plates 210 are combined in the stranding sheath 200, and each of the five stranding plates 210 is provided with a stranding hole 220, so that the conductors 340 can be combined in a clearance manner, the probability of mutual interference is reduced, cup joint insulating conductor cover 300 at the circumference outer wall of conductor 340, insulating conductor cover 300 utilizes rubber sleeve 310 to cup joint inorganic insulating cover 320, and inorganic insulating cover 320's circumference outer wall is with winding mode combination mica insulating tape 330, reaches multilayer leakage protection effect, has promoted the safety protection nature of cable, avoids the personal and property safety because of the electric leakage leads to.

Referring again to fig. 3, in order to ensure the uniformity of the mica insulation tape 330 in combination with the inorganic insulation sheath 300, in particular, the mica insulation tape 330 is uniformly wound on the circumferential outer wall of the inorganic insulation sheath 320 in a spiral manner, which is required to ensure the uniformity of the spiral winding manner.

Referring to fig. 1 again, in order to effectively increase the insulation effect of the leakage protection, specifically, epoxy insulation powder is filled between the inner sheath 110 and the stranded sheath 200, and the epoxy insulation powder is used as a preferred material but not as the only material.

Referring to fig. 3 again, in order to facilitate internal support of the five conductors 340 and increase internal strength, specifically, the core bar is made of a flexible rubber rod, and the flexible rubber rod has flexible strength and can perform supporting and insulating effects.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a cable with multilayer earth leakage protection effect which characterized in that: the split type insulated conductor comprises a polyethylene sheath (100), a split sheath (200) and an insulated conductor sleeve (300), wherein the inner circumferential wall of the polyethylene sheath (100) is sleeved with the split sheath (200), the inner circumferential wall of the split sheath (200) is sleeved with the insulated conductor sleeve (300), the diameter of the split sheath (200) is smaller than the inner diameter of the polyethylene sheath (100), a split plate (210) is integrally connected with the inner circumferential wall of the split sheath (200), split holes (220) are integrally connected with the surface of the split plate (210), the number of the split plate (210) and the split holes (220) is five, the inner circumferential walls of the five split holes (220) are respectively inserted into the insulated conductor sleeve (300), a round hole is integrally connected with the inside of the split sheath (200), a core rod is arranged inside the round hole, and a rubber sleeve (310) is sleeved on the outer circumferential wall of the insulated conductor sleeve (300), the circumference inner wall of rubber sleeve (310) has cup jointed inorganic insulating cover (320), the circumference outer wall of inorganic insulating cover (320) has cup jointed mica insulating tape (330), the circumference inner wall of inorganic insulating cover (320) is pegged graft and is had conductor (340).

2. A cable with multilayer earth leakage protection according to claim 1, wherein: an inner sheath (110) is inserted into the circumferential inner wall of the polyethylene sheath (100), and the diameter of the inner sheath (110) is smaller than the inner diameter of the polyethylene sheath (100).

3. A cable with multilayer earth leakage protection according to claim 1, wherein: the mica insulation tape (330) is uniformly wound on the circumferential outer wall of the inorganic insulation sleeve (320) in a spiral mode.

4. A cable with multilayer earth leakage protection according to claim 2, wherein: the inner sheath (110) and the stranded sheath (200) are filled with epoxy insulating powder.

5. A cable with multilayer earth leakage protection according to claim 1, wherein: the core rod is made of a soft rubber rod.